Mosa Tsay
Mosa Tsay Cello Scroll square.jpg

Mosa Tsay is a contemporary-minded cellist and concert experience designer based in New York City.

Mosa performs with Wavefield Ensemble and is a frequent collaborator with International Contemporary Ensemble (ICE). Her playing can be heard on Anna Thorvaldsdottir’s album with ICE, AEQUA (released November 2018).

Photo: Clement Lam

Photo: Clement Lam

Mosa is an alumna of Doublestop Foundation and performed as an ambassador of the foundation after winning its Instrument Loan Competition in 2014. Formerly the Artistic Director of Celli@Berkeley and a San Francisco-based collective of cellists, Mosa commissioned and premiered new works for celli and electronics in the San Francisco Bay Area. In 2014, she co-produced Celli@Berkeley’s debut CD album in collaboration with composer Jared Redmond and Grammy-winning Barry Phillips. 

Masterclass with Yo Yo Ma in Berkeley. Photo: David Bellard

Masterclass with Yo Yo Ma in Berkeley. Photo: David Bellard

She was a featured soloist with the UC Berkeley Symphony Orchestra as winner of UC Berkeley’s Concerto Competition in 2013 and 2015 (Bloch’s Schelomo and Schumann Cello Concerto). Other notable performances have been in masterclasses for Yo-Yo Ma, Frans Helmerson, Hans Jørgen Jensen, Paul Katz, David Geber, Tamás Varga (Vienna Philharmonic), and members of the Juilliard String Quartet and Kronos Quartet. She has performed with Danish String Quartet, Joseph Silverstein, Eco Ensemble and participated in orchestral masterclasses with Gustavo Dudamel, Esa-Pekka Salonen, and Valery Gergiev. Her past summer engagements include Ensemble Evolution at Banff Centre, Fontainebleau, National Arts Centre Young Artists Program in Ottawa, Canada, St. Lawrence String Quartet Chamber Seminar at Stanford University, and Meadowmount School of Music.

Groupmuse in Berkeley, CA. Photo: Megan Moura

Groupmuse in Berkeley, CA. Photo: Megan Moura

Mosa received her Master of Music from The Juilliard School. She holds two bachelor's degrees in Music and in Society and Environment from University of California, Berkeley. Her honors thesis explored “Silence: In Performance and Within the Performer,” an analysis of the role of silence in music by J.S. Bach, Hans Werner Henze and John Cage. She was the recipient of the Eisner Award, Mary Nuñes Souza Prize and Alfred Hertz Traveling Fellowship. 

Born to Taiwanese parents, she began playing cello at age seven in San Diego. Her past teachers and mentors include Joel Krosnick, Jonathan Koh, Catherine Godden, Lu-Yan Guo, David Milnes, Mary Gerard, and Hernan Constantino.

Mosa plays a 1900 Collin-Mezin cello, on loan from a private collection.

Photo: Laura Andrade

Photo: Laura Andrade

Presenting music outside of traditional performance spaces.

The most prolific groupmuser in our history. And she’s now, officially, a coast-to-coast Massivemuse impresario.
— Groupmuse

In a special partnership with Groupmuse in summer 2017, she presented two sold-out Massivemuses - at a chocolate factory in Brooklyn and a coworking space in San Francisco. To increase awareness of interdisciplinary collaborations between movement, electronics, and music, she invited composer Scott Rubin to share with the Groupmusers in San Francisco a piece featuring a dancer manipulating electronics using motion sensors.

In 2016, Mosa launched Celloscape, a collective of cellists in the San Francisco Bay Area dedicated to performing new music. The debut concert, held at Bruce Beasley's Sculpture Studio in Oakland, was generously sponsored by Mrs. Laurence Beasley, Jennifer Howard, Marco Rozzano, and Linda Barnett. The collective featured 14 cellists in the San Francisco Bay Area and 5 composers.

While a student at UC Berkeley and freelancer after graduating, Mosa produced concerts of new and old music for Celli@Berkeley, a 12-piece cello ensemble, at the Berkeley Art Museum.

Past Projects.

Mosa was Executive Director and co-founder of Versoi Ensemble, a collaboration between Finnish and American musicians from a previous joint orchestra tour of Juilliard and Sibelius Academy students (conducted by Esa-Pekka Salonen). Versoi Ensemble debuted at Kaufman Center’s Merkin Hall in New York and Holley Hall in Sarasota, Florida in November 2018.

She has contributed to Marlboro Music Festival, American Composers Orchestra, and International Contemporary Ensemble in administrative roles.



Recent Performances.

Friday, December 8, 2018 @ 7:00pm - Groupmuse in Dumbo, Brooklyn [Brahms Clarinet Quintet]

Saturday, December 14, 2018 @ 8pm @ The Juilliard School - GRADUATION RECITAL [Works by Carter, Schubert, Bach] <Free admission>

December 22, 2018 @ 7:30pm - Groupmuse in Kensington, CA [Works by Carter, Schubert, Bach]


Contact: Collaborate?

All project proposals are welcome. (E.g., space, light, color, electronics, succulents, silence, sculpture, linen, sound installations, improvisation, contact mics)

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